Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper we present the results obtained by contactless measurement of vibration of the incus inside the middle ear of a human cadaver, exposed to an external calibrated sound source. The measurement configuration was a Michelson fiber-optic interferometer based on a 3x3 fiber optic coupler, with a VCSEL source. The interferometric signal fading was solved using two quasiquadrature signals and specialized signal processing. The ossicle reflection was augmented by a very light piece of retroreflective material attached to the bone. We measured the amplitude of vibration at different sound pressure levels, independently monitored by a decibel meter placed in the proximity of the cadaver ear. The accuracy of the measurement technique was proved by using a calibrated piezo transducer exposed to vibrate with amplitude of 7nm at 1kHz. We performed the experiments on 8 cadavers in total. The measured amplitudes were found to be in the range between 1 pm and 1 nm, under the sound excitati...on of 40-90 dB SPL @ 1kHz, respectively.
Кључне речи:
fiber-optic sensors / vibration measurement / implantable microphone / hearing aidИзвор:
Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia, 2020, 2232-2236Издавач:
- Rijeka : Croatian Society for Information, Communication and Electronic Technology - MIPRO
Финансирање / пројекти:
- NFB Austria & ACMIT Gmbh, Totally implantable fiber-optic sensing system for cochlear- and middle-ear hearing aids, Life Sciences grant: LS14-026
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Đinović, Zoran AU - Tomić, Miloš AU - Pavelka, R. AU - Sprinzl, G. AU - Traxler, H. PY - 2020 UR - https://dais.sanu.ac.rs/123456789/9985 AB - In this paper we present the results obtained by contactless measurement of vibration of the incus inside the middle ear of a human cadaver, exposed to an external calibrated sound source. The measurement configuration was a Michelson fiber-optic interferometer based on a 3x3 fiber optic coupler, with a VCSEL source. The interferometric signal fading was solved using two quasiquadrature signals and specialized signal processing. The ossicle reflection was augmented by a very light piece of retroreflective material attached to the bone. We measured the amplitude of vibration at different sound pressure levels, independently monitored by a decibel meter placed in the proximity of the cadaver ear. The accuracy of the measurement technique was proved by using a calibrated piezo transducer exposed to vibrate with amplitude of 7nm at 1kHz. We performed the experiments on 8 cadavers in total. The measured amplitudes were found to be in the range between 1 pm and 1 nm, under the sound excitation of 40-90 dB SPL @ 1kHz, respectively. PB - Rijeka : Croatian Society for Information, Communication and Electronic Technology - MIPRO C3 - Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia T1 - Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry SP - 2232 EP - 2236 UR - https://hdl.handle.net/21.15107/rcub_dais_9985 ER -
@conference{ author = "Đinović, Zoran and Tomić, Miloš and Pavelka, R. and Sprinzl, G. and Traxler, H.", year = "2020", abstract = "In this paper we present the results obtained by contactless measurement of vibration of the incus inside the middle ear of a human cadaver, exposed to an external calibrated sound source. The measurement configuration was a Michelson fiber-optic interferometer based on a 3x3 fiber optic coupler, with a VCSEL source. The interferometric signal fading was solved using two quasiquadrature signals and specialized signal processing. The ossicle reflection was augmented by a very light piece of retroreflective material attached to the bone. We measured the amplitude of vibration at different sound pressure levels, independently monitored by a decibel meter placed in the proximity of the cadaver ear. The accuracy of the measurement technique was proved by using a calibrated piezo transducer exposed to vibrate with amplitude of 7nm at 1kHz. We performed the experiments on 8 cadavers in total. The measured amplitudes were found to be in the range between 1 pm and 1 nm, under the sound excitation of 40-90 dB SPL @ 1kHz, respectively.", publisher = "Rijeka : Croatian Society for Information, Communication and Electronic Technology - MIPRO", journal = "Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia", title = "Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry", pages = "2232-2236", url = "https://hdl.handle.net/21.15107/rcub_dais_9985" }
Đinović, Z., Tomić, M., Pavelka, R., Sprinzl, G.,& Traxler, H.. (2020). Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry. in Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia Rijeka : Croatian Society for Information, Communication and Electronic Technology - MIPRO., 2232-2236. https://hdl.handle.net/21.15107/rcub_dais_9985
Đinović Z, Tomić M, Pavelka R, Sprinzl G, Traxler H. Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry. in Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia. 2020;:2232-2236. https://hdl.handle.net/21.15107/rcub_dais_9985 .
Đinović, Zoran, Tomić, Miloš, Pavelka, R., Sprinzl, G., Traxler, H., "Measurement of the human cadaver ossicle vibration amplitude by fiber-optic interferometry" in Proceedings / MIPRO 2020 : 43rd International Convention, September 28, 2020 - October 2, 2020, Opatija, Croatia (2020):2232-2236, https://hdl.handle.net/21.15107/rcub_dais_9985 .